CN206528339U - It is a kind of to realize the double drive axle of back axle lifting and driving - Google Patents

It is a kind of to realize the double drive axle of back axle lifting and driving Download PDF

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Publication number
CN206528339U
CN206528339U CN201720083700.0U CN201720083700U CN206528339U CN 206528339 U CN206528339 U CN 206528339U CN 201720083700 U CN201720083700 U CN 201720083700U CN 206528339 U CN206528339 U CN 206528339U
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axle
jackshaft
differential
wheel
inter
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CN201720083700.0U
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Inventor
迟述迪
李兴瑞
林方军
王国元
李雪亭
郝毅兴
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Shandong Pengxiang Automobile Co Ltd
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Shandong Pengxiang Automobile Co Ltd
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Abstract

The double drive axle of back axle lifting and driving can be realized the utility model discloses a kind of, by middle axle assembly(50), rear axle assy(60)Double drive axle is constituted, is characterized in, by insertion axle(1), jackshaft active roller gear(8), half shaft wheel after inter-axle differential(9), input shaft(10), rolling bearing(12), jackshaft driven cylindrical gear(13), jackshaft drive bevel gear(14), jackshaft driven wheel of differential(15), jackshaft left half axle wheel(16), jackshaft right axle shaft wheel(17), jackshaft left half axle(18), jackshaft right axle shaft(19), insertion aixs cylinder edge(21)Axle assembly in composition(50)Dynamical system;By return spring(2), shift fork(3), shift fork axle(4), piston(5), cylinder(6), engaging sleeve(7)Axle assembly in composition(50)Power to rear axle assy(60)The power control system of transmission, controls insertion axle(1)With half shaft wheel after inter-axle differential(9)Consolidation and disconnection, can realize that vehicle drive axle drives function entirely, vehicle can be solved again disconnect rear axle power in the case of unloaded or underloading to transmit and realize back axle enhanced feature.

Description

It is a kind of to realize the double drive axle of back axle lifting and driving
Technical field:
The utility model is related to the technical fields such as automotive axle, gear reduction unit, and specifically one kind can realize back axle Lifting and the double drive axle of driving.
Background technology:
Automotive axle carries vehicle carrying, walking, braking, increasing torsion, transmission moment of torsion and reasonable distribution to left and right wheelses Effect.Automobile needs vehicle bridge to provide big carrying, high pulling torque in full load, and the scattered carrying to realize vehicle reduces the broken of road pavement Bad, gentle start, the function of normally running, now need all drive axles of vehicle to both participate in carrying and driving;When automobile is unloaded When return or contained goods is light parabolic product, vehicle presses the carrying of the drive axle of maximum mounted mass design and driving force will be very big Surplus, and because the drive axle quantity of participation is more, cause that tire frictional resistance is big, vehicle transmission efficiency is low, oil consumption is high.For Improve transmission efficiency of the vehicle under unloaded or light condition, cut operating costs, more rational way be by jackshaft or after Bridge is lifted, and realizes double drive bridges to single conversion for driving bridge.
What current vehicle can realize back axle enhanced feature is carrying bogie, without driving function;It is architectural limitation, it is existing Double drive axle only has driving bearing capacity, and jackshaft power, which is transferred directly to back axle, can not select disconnection, and back axle does not possess lifting Function.
Utility model content:
The purpose of this utility model is to overcome the shortcomings of above-mentioned prior art, and back axle lifting can be realized and drive by providing one kind Dynamic double drive axle;Mainly solve existing double drive axle and there was only driving function, the problem of back axle can not be lifted.
The technical solution of the utility model is:A kind of double drive axle that can be realized back axle lifting and drive, it is total by jackshaft Into, rear axle assy composition double drive axle, it is characterized in that, by insertion axle, return spring, shift fork, shift fork axle, piston, Half shaft wheel, input shaft, inter-axle differential differential lock, rolling after cylinder, engaging sleeve, jackshaft active roller gear, inter-axle differential Bearing, jackshaft driven cylindrical gear, jackshaft drive bevel gear, jackshaft driven wheel of differential, jackshaft left half axle wheel, jackshaft right axle shaft The transmission system of axle assembly in wheel, jackshaft left half axle, jackshaft right axle shaft, rolling bearing, insertion aixs cylinder edge composition;Wherein by insertion Half shaft wheel, input shaft, rolling bearing, jackshaft driven cylindrical gear, jackshaft after axle, jackshaft active roller gear, inter-axle differential Drive bevel gear, jackshaft driven wheel of differential, jackshaft left half axle wheel, jackshaft right axle shaft wheel, jackshaft left half axle, jackshaft right axle shaft, pass through The dynamical system of axle assembly in axis bead composition;In return spring, shift fork, shift fork axle, piston, cylinder, engaging sleeve are constituted The power control system that the power of axle assembly is transmitted to rear axle assy, control insertion axle and the consolidation of half shaft wheel after inter-axle differential With disconnection, realizing the engine torque transmitted from input shaft is transmitted or disconnects to rear axle assy;The power train of middle axle assembly System is made up of dynamical system and power control system;
Described jackshaft active roller gear and the cooperation that input shaft is unthreaded hole and optical axis, pass through inter-axle differential and input Axle mutually differential can rotate and both lockings can be turned into a rigid body by inter-axle differential differential lock again;The driven cylinder of jackshaft Gear and jackshaft active roller gear are a pair of meshing cylindrical gear pairs;Jackshaft driven cylindrical gear passes through spline and jackshaft active Bevel gear is affixed, and jackshaft drive bevel gear and jackshaft driven wheel of differential are a pair of meshing bevel gear pairs;Jackshaft left half axle wheel is with Bridge right axle shaft wheel is rotated by inter-wheel differential with jackshaft driven wheel of differential;Jackshaft left half axle and jackshaft right axle shaft pass through flower Key is affixed with jackshaft left half axle wheel and jackshaft right axle shaft wheel respectively;After inter-axle differential half shaft wheel by inter-axle differential with input Axle is rotated together, after insertion axle one end is supported on inter-axle differential through rolling bearing in half shaft wheel, the other end through rolling bearing across The formula of putting is supported on after axle housing and covered, and insertion axle is fixedly connected with insertion aixs cylinder edge, and insertion axle is relative to semiaxis after inter-axle differential Wheel has two states, affixed and relative rotation;Engagement is cased with two kinds of internal splines of size, big internal spline and semiaxis after inter-axle differential Wheel external splines is meshed, along inter-axle differential after half shaft wheel external splines slide axially, outside the small internal spline of engaging sleeve and insertion axle Spline is meshed, and is slid axially along insertion axle external splines;Cylinder is fixed on reducer shell;Cylinder head portions leave ventilation Hole, piston slides axially with cylinder axial direction one annular seal space of formation, piston in cylinder chamber body;Shift fork axle passes through hole and axle Cooperation is supported on reducer shell, is slid axially, and be rigidly connected with piston;Return spring is enclosed in shift fork axle, return bullet Spring one end is contacted with shift fork, and the other end is contacted with reducer shell;Shift fork one end is fixed in shift fork axle axially transports with shift fork axle Dynamic, one end, which is acted in engaging sleeve annular groove, drives engaging sleeve to axially move;Pass through semiaxis after engaging sleeve and inter-axle differential Take turns the engagement of spline and separate, realize consolidation and disconnection of the half shaft wheel with insertion axle after inter-axle differential.
Compared with the prior art a kind of double drive axle that can realize back axle lifting and driving described in the utility model has There is following good effect:Back axle can be lifted as needed(It is not involved in carrying and drives), can drive(Carry simultaneously), existing duplex The characteristics of drive axle driving force is big, road conditions are adaptable, can disconnect duplex driving in the case of or underloading unloaded in vehicle again Bridge rear axle power simultaneously realizes back axle enhanced feature, to improve system of vehicle transmission efficiency, energy-saving and emission-reduction, reduce the spy of vehicle operating cost Point.
Brief description of the drawings:
Fig. 1 is that the double drive bridges of vehicle drive state diagram entirely;
Fig. 2 is the double drive bridge back axle lifting state diagrams of vehicle;
Fig. 3 is power transmission control system engagement of the present utility model, and double drive bridges drive status architecture schematic diagram entirely;
Fig. 4 is Fig. 3 partial enlargement structural representation;
Fig. 5 is power transmission control system engagement of the present utility model, and double drive bridges drive another structural representation of state entirely;
Fig. 6 is power transmission control system separation of the present utility model, and back axle lifting jackshaft list drives status architecture schematic diagram;
Fig. 7 is Fig. 6 partial enlargement structural representation;
Fig. 8 is power transmission control system separation of the present utility model, and back axle lifting is single to drive another structural representation of state.
Embodiment:
In order to be better understood from and implement, specific embodiment is provided below in conjunction with the accompanying drawings and describes the utility model in detail;Institute It is only used for explaining the utility model for embodiment, is not intended to limit scope of the present utility model.
Embodiment 1, referring to Fig. 1,2,3,4,5,6,7,8, by jackshaft active roller gear 8 and the unthreaded hole of input shaft 10 and optical axis Coordinate, differential can mutually be rotated, can be incited somebody to action again by inter-axle differential differential lock 11 by inter-axle differential and input shaft 10 Both lockings turn into a rigid body, and jackshaft driven cylindrical gear 13 and jackshaft active roller gear 8 are a pair of meshing roller gears It is secondary;By jackshaft driven cylindrical gear 13 by spline and jackshaft drive bevel gear 14 affixed, jackshaft drive bevel gear 14 and jackshaft Driven wheel of differential 15 is a pair of meshing bevel gear pair, jackshaft left half axle wheel 16 and jackshaft right axle shaft wheel 17 by inter-wheel differential with Jackshaft driven wheel of differential 15 is rotated together;By jackshaft left half axle 18 and jackshaft right axle shaft 19 by spline respectively with jackshaft left half axle Wheel 16 and jackshaft right axle shaft wheel 17 are affixed;Half shaft wheel 9 is rotated by inter-axle differential with input shaft 10 after inter-axle differential; After the one end of insertion axle 1 is supported on into inter-axle differential through rolling bearing 12 in half shaft wheel 9, the other end bridges formula through rolling bearing 20 It is supported on after axle housing and covers, insertion axle 1 is fixedly connected by spline with insertion aixs cylinder edge 21, and insertion axle 1 is relative to shaft space difference speed Half shaft wheel 9 has two states after device, i.e., affixed and relative rotation;The dynamical system of axle assembly 50 in formation;
Engaging sleeve 7 has two kinds of internal splines of size, and big internal spline is meshed with the external splines of half shaft wheel after inter-axle differential 9, and It can be slid axially after inter-axle differential on the external splines of half shaft wheel 9;The small internal spline of engaging sleeve 7 and the external splines phase of insertion axle 1 Engagement, and can be slid axially on the external splines of insertion axle 1;Cylinder 6 is fixed on reducer shell by screw thread;Cylinder 6 Passage is left in end, and piston 5 forms an annular seal space in the axial direction with cylinder 6, and piston 5 can be with axle in the cavity of cylinder 6 To slip;Shift fork axle 4 coordinates to be supported on reducer shell by hole with axle can slide axially and be rigidly connected with piston 5;Will Return spring 2 is enclosed in shift fork axle 4, and the one end of return spring 2 is contacted with shift fork 3, and the other end is contacted with reducer shell, return bullet Spring 2 has certain elastic force under the installation original state of obstructed gases at high pressure, and shift fork 3 is pressed against to the reducing gearbox of piston side On body;The one end of shift fork 3 is fixed in shift fork axle 4 to be axially moved with shift fork axle 4, and the other end acts on band in the annular groove of engaging sleeve 7 Dynamic engaging sleeve 7 is axially moved;The power control system that the power of axle assembly 50 is transmitted to rear axle assy 60 in formation;
By above-mentioned dynamical system and power control system constitute in axle assembly 50 transmission system, by middle axle assembly 50 with Rear axle assy 60 is connected by power transmission shaft;It is real by the engagement of engaging sleeve 7 and the spline of half shaft wheel after inter-axle differential 9 with separating Consolidation and disconnection of the half shaft wheel 9 with insertion axle 1 after existing inter-axle differential, so that the power of axle assembly 50 is to rear axle assy in controlling 60 transmission or disconnection, upon opening, rear axle assy 60 can be lifted;It is real by a kind of energy of the present utility model formed above The double drive axle of existing back axle lifting and driving.
A kind of double drive axle that can be realized back axle lifting and drive described in the utility model, it is double when vehicle is heavily loaded to drive Bridge all participates in driving, referring to Fig. 1, Fig. 3, Fig. 4, Fig. 5, and now gases at high pressure disconnect, and does not have gases at high pressure in cylinder 6, is returning Push shift fork 3 to piston 5 side in the presence of the spring force of spring 2 of position, shift fork 3 drives engaging sleeve 7 by interior external splines by insertion axle 1 Consolidated with half shaft wheel after inter-axle differential 9 --- normal engagement.Jackshaft active roller gear 8 by inter-axle differential gear with Input shaft 10 is connected, and is rotated with input shaft 10.Jackshaft driven cylindrical gear 13 passes through spline and jackshaft drive bevel gear 14 Consolidation.Jackshaft active roller gear 8 and jackshaft driven cylindrical gear 13 partner cylindrical gear pair.Jackshaft drive bevel gear 14 Partnered bevel gear pair with jackshaft driven cylindrical gear 13.The moment of torsion come from engine mission transmission is inputted through input shaft 10 And be divided into two, a part of moment of torsion is through jackshaft active roller gear 8 → jackshaft driven cylindrical gear 13 → jackshaft drive bevel gear 14 → jackshaft driven wheel of differential 15 → jackshaft left half axle wheel 16, jackshaft right axle shaft 17 → jackshaft of wheel left half axle 18, jackshaft right axle shaft 19 are transferred to the driving function of axle assembly 50 during jackshaft left and right wheelses are realized;Another part passes through half shaft wheel after inter-axle differential 9 21 → power transmission shaft of → insertion axle 1 → insertion aixs cylinder edge → rear axle assy 60 realizes the driving of rear axle assy 60, so as to realize duplex The full drive function of bridge.
When vehicle underloading or it is unloaded when, referring to Fig. 2, Fig. 6, Fig. 7, Fig. 8, for improve the transmission efficiency of vehicle, energy-saving and emission-reduction, Car operation expense is reduced, the power of rear axle assy 60 of disconnection double drive axle, which transmits and lifts rear axle assy 60, makes rear axle assy 60 tires depart from ground.When needing the power interruption of rear axle assy 60 and being lifted, concrete operations are as follows:Gases at high pressure pass through Air pipe interface enters in the annular seal space of cylinder 6 and piston 5 formation, and acts on axial thrust is produced on piston 5, and piston 5 is promoted Shift fork axle 4, the compression retracteding position spring 2 of shift fork 3 axially move, and then shift fork 3 drives engaging sleeve 7 and half shaft wheel after inter-axle differential 9 separation;Shaft space difference speed lock 11 links in the presence of gases at high pressure simultaneously, and jackshaft active roller gear 8 is firm with input shaft 10 Property connection.When engaging sleeve 7 is separated with half shaft wheel after inter-axle differential 9, from vehicle motor gearbox by input shaft 10 to The power interruption that rear axle assy 60 is transmitted, no longer transmits power, institute is dynamic through jackshaft active through insertion axle 1 to rear axle assy 60 Roller gear 8 → jackshaft driven cylindrical gear 13 → jackshaft drive bevel gear 14 → jackshaft driven wheel of differential 15 → jackshaft left half axle Wheel 16, jackshaft right axle shaft 17 → jackshaft of wheel left half axle 18, jackshaft right axle shaft 19 are transferred to the middle left and right wheelses of axle assembly 50, realize car Single bridge driving traveling.

Claims (1)

1. a kind of can realize the double drive axle of back axle lifting and driving, by middle axle assembly(50), rear axle assy(60)Composition is double Join drive axle, it is characterised in that by insertion axle(1), return spring(2), shift fork(3), shift fork axle(4), piston(5), cylinder (6), engaging sleeve(7), jackshaft active roller gear(8), half shaft wheel after inter-axle differential(9), input shaft(10), inter-axle differential Differential lock(11), rolling bearing(12), jackshaft driven cylindrical gear(13), jackshaft drive bevel gear(14), jackshaft is from mantle tooth Wheel(15), jackshaft left half axle wheel(16), jackshaft right axle shaft wheel(17), jackshaft left half axle(18), jackshaft right axle shaft(19), the axis of rolling Hold(20), insertion aixs cylinder edge(21)Axle assembly in composition(50)Transmission system;Wherein by insertion axle(1), jackshaft active cylinder Gear(8), half shaft wheel after inter-axle differential(9), input shaft(10), rolling bearing(12), jackshaft driven cylindrical gear(13), in Bridge drive bevel gear(14), jackshaft driven wheel of differential(15), jackshaft left half axle wheel(16), jackshaft right axle shaft wheel(17), jackshaft it is left Semiaxis(18), jackshaft right axle shaft(19), insertion aixs cylinder edge(21)Axle assembly in composition(50)Dynamical system;By return spring (2), shift fork(3), shift fork axle(4), piston(5), cylinder(6), engaging sleeve(7)Axle assembly in composition(50)Power it is total to back axle Into(60)The power control system of transmission, controls insertion axle(1)With half shaft wheel after inter-axle differential(9)Consolidation and disconnection, it is real Now from input shaft(10)The engine torque transmitted is to rear axle assy(60)Transmission or disconnection;Middle axle assembly(50)Transmission System is made up of dynamical system and power control system;
Described jackshaft active roller gear(8)With input shaft(10)The cooperation of unthreaded hole and optical axis, by inter-axle differential with Input shaft(10)Mutually differential it can rotate and inter-axle differential differential lock can be passed through(11)Both lockings are turned into a rigid body; Jackshaft driven cylindrical gear(13)With jackshaft active roller gear(8)It is a pair of meshing cylindrical gear pair;The driven Cylinder Gear of jackshaft Wheel(13)Pass through spline and jackshaft drive bevel gear(14)It is affixed, jackshaft drive bevel gear(14)With jackshaft driven wheel of differential(15) It is a pair of meshing bevel gear pair;Jackshaft left half axle wheel(16)With jackshaft right axle shaft wheel(17)It is driven with jackshaft by inter-wheel differential Bevel gear(15)Rotate together;Jackshaft left half axle(18)With jackshaft right axle shaft(19)By spline respectively with jackshaft left half axle wheel (16)With jackshaft right axle shaft wheel(17)It is affixed;Half shaft wheel after inter-axle differential(9)By inter-axle differential with input shaft(10)One Rise and rotate, insertion axle(1)One end is through rolling bearing(12)It is supported on half shaft wheel after inter-axle differential(9)On, the other end is through rolling Bearing(20)The formula of bridging is supported on after axle housing and covered, insertion axle(1)With insertion aixs cylinder edge(21)It is fixedly connected, insertion axle(1)Phase For half shaft wheel after inter-axle differential(9)There are two states, affixed and relative rotation;Engaging sleeve(7)There are two kinds of internal splines of size, Big internal spline and half shaft wheel after inter-axle differential(9)External splines is meshed, along inter-axle differential after half shaft wheel(9)External splines does axle To slip, engaging sleeve(7)Small internal spline and insertion axle(1)External splines is meshed, along insertion axle(1)External splines slides axially; Cylinder(6)It is fixed on reducer shell;Cylinder(6)Leave passage, piston in end(5)With cylinder(6)Axial direction is formed One annular seal space, piston(5)In cylinder(6)Slid axially in cavity;Shift fork axle(4)Coordinated by hole and axle and be supported on decelerator On housing, slide axially, and and piston(5)It is rigidly connected;Return spring(2)It is enclosed on shift fork axle(4)On, return spring(2)One End and shift fork(3)Contact, the other end is contacted with reducer shell;Shift fork(3)One end is fixed on shift fork axle(4)On with shift fork axle (4)It is axially moved, one end acts on engaging sleeve(7)Engaging sleeve is driven in annular groove(7)Axially move;Pass through engaging sleeve(7) With half shaft wheel after inter-axle differential(9)The engagement of spline realizes half shaft wheel after inter-axle differential with separating(9)With insertion axle(1) Consolidation and disconnection.
CN201720083700.0U 2017-01-23 2017-01-23 It is a kind of to realize the double drive axle of back axle lifting and driving Active CN206528339U (en)

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CN201720083700.0U CN206528339U (en) 2017-01-23 2017-01-23 It is a kind of to realize the double drive axle of back axle lifting and driving

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CN201720083700.0U CN206528339U (en) 2017-01-23 2017-01-23 It is a kind of to realize the double drive axle of back axle lifting and driving

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111845334A (en) * 2020-07-16 2020-10-30 北京福田戴姆勒汽车有限公司 Vehicle with a steering wheel
CN112339497A (en) * 2020-11-24 2021-02-09 一汽解放汽车有限公司 Double-drive lifting vehicle and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111845334A (en) * 2020-07-16 2020-10-30 北京福田戴姆勒汽车有限公司 Vehicle with a steering wheel
CN112339497A (en) * 2020-11-24 2021-02-09 一汽解放汽车有限公司 Double-drive lifting vehicle and control method thereof
CN112339497B (en) * 2020-11-24 2022-04-12 一汽解放汽车有限公司 Double-drive lifting vehicle and control method thereof

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